2026 NPPES data Gynecologic Oncology Physician NPI 1235549908
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CATHERINE WATSON

Gynecologic Oncology Physician in CHARLESTON, South Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
261
Medicare Part D claims · 41 beneficiaries · Gynecologic Oncology Physician avg: 188
MIPS score
97.1279/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$148.18
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CATHERINE WATSON reported a CMS MIPS final score of 97.1279/100 — above the 83.1 national average — and filed 261 Medicare Part D claims in 2023.

97.1279/100
MIPS score · +14 vs avg
261
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

CATHERINE WATSON's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

97 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

CATHERINE WATSON practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CATHERINE WATSON?

High performer (top quartile)

NPI registry status

Active

Issued 05/05/2014

NPI 1235549908

Primary specialty

Gynecologic Oncology Physician

Niche

1,360 US NPIs in this specialty

Medicare Part D claims

261 39% vs specialty avg

2023 prescription claims

Specialty avg: 188

MIPS final score

97.1279/100 14.027900000000002% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Gynecologic Oncology Physician compares to other specialties among South Carolina providers

South Carolina providers

Gynecologic Oncology Physician share within South Carolina

1. Gynecologic Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecologic Oncology Physician share within South Carolina

Medicare quality performance — MIPS

CATHERINE WATSON's 2023 MIPS final score plotted against the Gynecologic Oncology Physician national average

High performer (top quartile)
MIPS Final Score
97.1279/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gynecologic Oncology Physician) — 97.1279/100 vs national avg 83.1

0%100%National avg83%97.1%
MIPS final score (Gynecologic Oncology Physician) — 97.1279/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

CATHERINE WATSON appears in the CMS NPPES registry as a Gynecologic Oncology Physician provider at 1470 TOBIAS GADSON BLVD STE 110, CHARLESTON, SC, 29407, with a listed phone of (843) 402-1301. NPI 1235549908 was issued on 05/05/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WATSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 261 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $157K in drug spend, with an opioid prescribing rate of 8.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.1279/100 for the 2023 performance year (Quality 85.6458), compared with the national average of 83.1.

Gynecologic Oncology Physician is a narrow specialty nationwide, with 1,360 enrolled providers across 49 states and an average of 188 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1470 TOBIAS GADSON BLVD STE 110
CHARLESTON, SC 29407

Provider Details

NPI 1235549908
Specialty Gynecologic Oncology Physician
Gender Female
NPI Issued 05/05/2014

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.1279
Final Score
Avg: 83.1
85.6458
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where CATHERINE WATSON bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

ROPER SAINT FRANCIS PHYSICIANS NETWORK
CHARLESTON, SC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for CATHERINE WATSON. Source: openpaymentsdata.cms.gov.

Total received

$148

Largest payer

Myriad Genetic Laboratories, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

261
Total Claims
$157K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
305
Total Day Supply
4,574
Generic Drug Cost
$2K
Opioid Claims
22 (8.4% rate)

Patient Demographics

Average Patient Age
68.3 years
Avg HCC Risk Score
3.14
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What CATHERINE WATSON prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Dexamethasone
50
Olanzapine
50
Ondansetron Hcl
33
Potassium Chloride
17
Tramadol Hcl
14
Prochlorperazine Maleate
13
Gabapentin
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Gynecologic Oncology Physician Overview

How CATHERINE WATSON fits within the Gynecologic Oncology Physician landscape nationally.

1,360
Gynecologic Oncology Physician Providers in US
49
States with Gynecologic Oncology Physician
188
Avg Claims per Provider

CATHERINE WATSON's 261 claims are above the specialty average of 188.

Nearby Gynecologic Oncology Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as WATSON.

Compare Gynecologic Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CATHERINE WATSON's specialty?
CATHERINE WATSON specializes in Gynecologic Oncology Physician and practices in CHARLESTON, South Carolina.
How much does CATHERINE WATSON prescribe under Medicare Part D?
In 2023, CATHERINE WATSON wrote 261 Medicare Part D claims totaling $157K in drug costs for 41 beneficiaries.
What is CATHERINE WATSON's Medicare quality score?
CATHERINE WATSON has a CMS MIPS Final Score of 97.1279/100 (Quality: 85.6458). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CATHERINE WATSON located?
CATHERINE WATSON is located at 1470 TOBIAS GADSON BLVD STE 110, CHARLESTON, SC, 29407. Phone: (843) 402-1301.
What is CATHERINE WATSON's NPI number?
CATHERINE WATSON's National Provider Identifier (NPI) is 1235549908, issued on 05/05/2014.
Does CATHERINE WATSON prescribe opioids?
Yes, CATHERINE WATSON had 22 opioid claims in 2023 with an opioid prescribing rate of 8.4%.
How many Gynecologic Oncology Physician providers are there in the US?
There are 1,360 Gynecologic Oncology Physician providers across 49 states in the US. The average Gynecologic Oncology Physician provider writes 188 Medicare Part D claims per year.
What drugs does CATHERINE WATSON prescribe most often?
Based on 2023 Medicare Part D data, CATHERINE WATSON's most frequently prescribed drugs include Dexamethasone, Olanzapine, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CATHERINE WATSON accept Medicare?
CATHERINE WATSON appears in CMS Medicare data with 261 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHERINE WATSON's credentials?
CATHERINE WATSON's NPI is 1235549908. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology